STR-NX300sportsbil.com/sony/STR/Other/STR-NX300.pdf · 2010-01-26 · STR-NX300 • STR-NX300 is the Tuner and Amplifier section in MHC-NX300AV. • STR-NX300 is almost the same as

SERVICE MANUAL

MICROFILM

Amplifier sectionThe following measured at AC 120/220/240 V,50/60 HzFront Speaker:DIN power output (rated) 95 + 95 watts

(6 ohms at 1 kHz, DIN)Continuous RMS power output (reference)

120 + 120 watts(6 ohms at 1 kHz,10% THD)

Centre Speaker:DIN power output (rated) 25 watts


35 watts(8 ohms at 1 kHz,10% THD)

Rear Speaker:DIN power output (rated) 25 + 25 watts


35 + 35 watts(8 ohms at 1 kHz,10% THD)

InputsVIDEO IN: voltage 250 mV,(phono jacks) impedance 47 kilohmsMD IN: voltage 450 mV,(phono jacks) impedance 47 kilohmsDVD INPUT:

FRONT IN: voltage 450 mV,(phono jacks) impedance 47 kilohmsREAR IN: voltage 450 mV,(phono jacks) impedance 47 kilohmsCENTER IN: voltage 450 mV,(phono jacks) impedance 47 kilohmsWOOFER IN: voltage 450 mV,(phono jacks) impedance 47 kilohms

MIC1/2: sensitivity 1 mV,(mini jack) impedance 10 kilohms

OutputsMD OUT: voltage 250 mV(phono jacks) impedance 1 kilohmsVIDEO OUT: max. output level 1 Vp-p,(phono jack) unbalanced,

Sync negative,load impedance 75 ohms

S-VIDEO OUT: Y: 1 Vp-p, unbalanced,(4-pin/mini-DIN jack) Sync negative,

C: 0.286 Vp-p,load impedance 75 ohms

PHONES: accepts headphones of 8(stereo mini jack) ohms or moreFRONT SPEAKER: accepts impedance of 6 to

16 ohmsREAR SPEAKER: accepts impedance of 8 to

16 ohmsCENTER SPEAKER: accepts impedance of 8 to

16 ohmsSUPER WOOFER: Voltage 1 V, impedance

1 kilohms

Tuner sectionFM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range 87.5 – 108.0 MHzAerial FM lead aerialAerial terminals 75 ohm unbalancedIntermediate frequency 10.7 MHz

AM tuner section

Tuning range2 Band type: 531 – 1,602 kHz

(with the interval set at9 kHz)530 – 1,710 kHz(with the interval set at10 kHz)

3 Band type:MW: 531 – 1,602 kHz

(with the interval set at9 kHz)530 – 1,710 kHz(with the interval set at10 kHz)

SW: 5.95 – 17.90 MHz(with the interval set at5 kHz)

Aerial AM loop aerialAerial terminals External aerial terminalIntermediate frequency 450 kHz

TUNER/AMPLIFIER

E ModelChinese Model

SPECIFICATIONS

STR-NX300

• STR-NX300 is the Tuner and Amplifier section in MHC-NX300AV.• STR-NX300 is almost the same as STR-NX3 Singapore model.

The difference portion and the difference parts from STR-NX3 Singapore model are de-scribed in this service manual.Please refer to STR-NX1/NX3 service manual (9-928-980-S) previously issued for otherinformation.

– Continued on next page –

2

PART No.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTEDLINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMSAND IN THE PARTS LIST ARE CRITICAL TO SAFEOPERATION. REPLACE THESE COMPONENTS WITHSONY PARTS WHOSE PART NUMBERS APPEAR ASSHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-LISHED BY SONY.

1. SERVICING NOTES

• MODEL IDENTIFICATION (Page 3)– Rear Panel –

MODEL PART No.

Malaysia, Singapore and Hong Kong models 4-221-391-5[]

Thai and Chinese models 4-221-391-7[]

GeneralPower requirementsThai and Chinese models: 220 V AC, 50/60 HzOther models: 120 V, 220 V or

230 – 240 V AC, 50/60 HzAdjustable with voltageselector

Power consumption 300 watts

Dimensions (w/h/d) Approx. 225 x 202 x 356mm

Mass Approx. 8.1 kg

Design and specifications are subject to changewithout notice.

3

2. GENERAL

• LOCATION OF CONTROLS (Page 4)– Front Panel –

– Rear Panel –

1 DISPLAY button

2 ?/1 button and indicator

3 POWER SAVE/DEMO (STANDBY) button

4 – m button

5 + M button

6 FILE SELECT button

7 VIDEO/DVD button

8 EDIT button

9 MD button

0 REPEAT button

qa TAPE button

qs PLAY MODE button

qd CD button

qf DBFB button

qg TUNER button

qh DSP button

qj TUNER BAND button

qk STEREO/MONO button

ql TUNER MEMORY button

w; KARAOKE PON button

wa GROOVE button and indicator

ws ECHO LEVEL knob

wd MIC LEVEL knob

wf MIC 1 jack

wg MIC 2 jack

wh PHONES jack

wj Remote sensor

wk Jog dial

wl ENTER button and indicator

e; DVD 5.1CH button and indicator

ea PRO LOGIC button and indicator

es VOLUME knob

1 AM ANTENNA terminals

2 FM ANTENNA terminal

3 SYSTEM CONTROL connector

4 VIDEO (AUDIO) IN jacks

5 MD IN jacks

6 MD OUT jacks

7 DVD 5.1CH INPUT jacks

8 SUPER WOOFER OUT jack

9 VOLTAGE SELECTOR switch

(Malaysia, Singapore and Hong Kong models)

q; FRONT SPEAKER terminals

qa REAR SPEAKER terminals

qs CENTER SPEAKER terminals

– +

– +

M

l

m

>

1

2

3

4

5

wh wj wk wl e; ea

6 08 qs qf qh

7 9 qa qd qg

qk

ql

wa

w;

ws

wd

wf

wg

es

qj

3

4

5

6

7

8

3

4

5

6

7

8

0 qa qs0 qa qs

99

21 21

4

10

1 Press CLOCK/TIMER.The hour indication flashes.

2 Press V or v repeatedly to set thehour.

3 Press ENTER.The minute indication flashes.

4 Press V or v repeatedly to set theminute.

5 Press ENTER.The clock starts working.

Tips• If you make a mistake, start over from step 1.• Setting the time deactivates the demo mode.

If you want to display the demo mode, pressDEMO (STANDBY) when the power is off.

To change the timeThe previous explanation shows how to setthe time while the power is off. To change thetime while the power is on, do the following:

1 Press CLOCK/TIMER.2 Press V or v repeatedly to select the SET

CLOCK.3 Press ENTER.4 Perform steps 2 through 5 above.

NoteThe clock settings are cancelled when youdisconnect the mains lead or if a power failureoccurs.

You must set the time before using the timerfunctions.

Step 3: Setting thetime

2,4 3,5

1

V

v

bB

(Page 5)

5

3. DIAGRAMS

3-1. IC PIN FUNCTION DESCRIPTION (Page 24, 25)

(STR-NX1/NX3)• MAIN BOARD IC501 M30622MA-A12FP (SYSTEM CONTROLLER )

Pin No. Pin Name I/O Description

93 KEY1 I

Key input terminal (A/D input)S615 to S617, S619 to S624 (TUNER BAND, STEREO/MONO, TUNER MEMORY, GROOVE, + M, – m, ENTER, DVD 5.1CH, PRO LOGIC) keys input(S623 DVD 5.1CH, S624 PRO LOGIC keys: used for the STR-NX3 only)

(STR-NX300)• MAIN BOARD IC501 M30622MA-A29FP (SYSTEM CONTROLLER )

Pin No. Pin Name I/O Description

93 KEY1 IKey input terminal (A/D input)S615 to S624 (TUNER BAND, STEREO/MONO, TUNER MEMORY, KARAOKE PON, GROOVE, + M, – m, ENTER, DVD 5.1CH, PRO LOGIC) keys input

6

3-2. PRINTED WIRING BOARD – MAIN Board –

STR-NX300

Page STR-NX1/NX3 STR-NX300

15

! : Difference portion.

• AbbreviationCH : Chinese modelHK : Hong Kong modelMY : Malaysia model

SP : Singapore modelTH : Thai model

Location C – D, 6 – 8

(MY, SP, HK, CH)

Location D – G, 2 – 5

(TH, CH)

R540

R541

CN191

10 1(FOR TEST)

(CH)

R526

R529

(CH)

(CH)(CH)

(CH)

#$

%

$

@

#

77

STR-NX300

3-3. SCHEMATIC DIAGRAM – MAIN Board (2/3) – (Page 13)! : Difference portion.



$

^

!

#

#

88

STR-NX300

3-4. SCHEMATIC DIAGRAM – PA Board –! : Difference portion.


3-5. PRINTED WIRING BOARD – PANEL Board –! : Difference portion.

Location A – D, 9 – 12

19 !

#


Location D – E, 1

20

Location F – G, 1 – 4

KARAOKEPON

S618

C704

R701

R702C723

R711

R715

C727

C721

R713

R714

C722C724 C725

C726

R717R721

C728

R716

C731C729

16 9

1 8

IC702

C732

R718

C734

D701

C735

R712

@

#

^@

99

STR-NX300

3-6. SCHEMATIC DIAGRAM – PANEL Board – (Page 21)! : Difference portion.

IC702 M65850FP

OSCILLATOR

1/2 VCC

AUTORESET

LPF1

MAINCONTROL

A/D

20KBITSRAM

LPF2D/A

1 2 3 4 5 6 7

891014 13 12 11

CLOCK

RESETMO

MID1 DO0

DO1

VCC

CLOC

K

REF

OP2I

N

OP2O

UT

LPF2

IN

LPF2

OUT

LPF1

IN

LPF1

OUT

OP1O

UT

OP1I

N

CC1

CC2

GND

^

%!

$

!

1010

STR-NX300

(MY, SP, HK)

(TH, CH)

3-7. PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM – TRANS Board –! : Difference portion.


4. EXPLODED VIEWS



The components identified by mark 0 or dottedline with mark 0 are critical for safety.Replace only with part number specified.


Ref. No. Part No. Description Remark

3 X-4952-296-1 PANEL ASSY, BACK (MY, SP, HK)3 X-4952-356-1 PANEL ASSY, BACK (CH, TH)4 1-751-688-11 WIRE (FLAT TYPE) (13CORE) (TH)

4 1-733-011-11 WIRE (FLAT TYPE) (15CORE)(MY, SP, HK)

6 1-233-545-11 TUNER PACK (FM/MW/SW) (TH)

6 1-233-546-11 TUNER PACK (FM/MW/SW) (MY, SP, HK)6 1-693-381-11 TUNER PACK (FM/MW/SW) (CH)

53 X-4952-015-2 PANEL ASSY, FRONT65 A-4426-655-A PANEL BOARD, COMPLETE67 1-769-885-11 WIRE (FLAT TYPE) (7CORE)

Ref. No. Part No. Description Remark

26

3 X-4952-296-1 PANEL ASSY, BACK (NX3: MY, SP)

4 1-733-011-11 WIRE (FLAT TYPE) (15CORE)(AEP, UK, MY, SP, JE)

6 1-233-546-11 TUNER PACK (FM/MW/SW) (MY, SP)

53 X-4951-816-1 PANEL ASSY, FRONT (NX3: E, AUS)65 A-4426-275-A PANEL BOARD, COMPLETE (NX3: E, AUS)67 1-769-886-11 WIRE (FLAT TYPE) (7CORE)

65

68

6268

64

6667

63

notsupplied

65

68

6268

64

6667

63

notsupplied

27

The components identified bymark 0 or dotted line with mark0 are critical for safety.Replace only with part numberspecified.

• Items marked “*” are not stocked since theyare seldom required for routine service. Somedelay should be anticipated when orderingthese items.

• AbbreviationCH : Chinese modelHK : Hong Kong modelMY : Malaysia modelSP : Singapore modelTH : Thai model

(MY, S

(

JW95

3

22

Location A – D, 5 – 7

(MY, SP, HK)

(TH, CH)

@

23

@

#

$

^

#

11


Ref. No. Part No. Description RemarkRef. No. Part No. Description Remark29102 A-4426-281-A PA BOARD, COMPLETE (NX3: E, AUS)

0104 1-575-651-11 CORD, POWER (NX: MY, SP)

* 105 3-703-244-00 BUSHING (2104), CORD

106 A-4426-277-A MAIN BORD, COMPLETE (NX3: MY, SP)(US, CND, AEP, UK, KR, MY, SP, AUS)

109 4-221-364-01 CHASSIS0T951 1-433-996-11 TRANSFORMER, POWER (NX3: E, AUS)

102 A-4428-730-A PA BOARD, COMPLETE0104 1-777-071-51 CORD, POWER (HK, MY, SP)0104 1-783-205-11 CORD, POWER (CH)0104 1-791-901-11 CORD, POWER (TH)* 105 3-703-244-21 BUSHING (2104), CORD (MY, SP, HK, CH)

* 105 3-703-571-11 BUSHING (S) (4516), CORD (TH)106 A-4426-657-A MAIN BORD, COMPLETE (MY, SP, HK)

106 A-4428-007-A MAIN BORD, COMPLETE (CH)106 A-4428-364-A MAIN BORD, COMPLETE (TH)

0107 1-770-019-11 ADAPTOR, CONVERSION 2P (HK)

109 X-4952-635-1 CHASSIS ASSY0T951 1-435-279-11 TRANSFORMER, POWER

105102

#2

#5

supplied

A105

102

#2

#5 #5

notsupplied

A

The components identified bymark 0 or dotted line withmark 0 are critical for safety.Replace only with part num-ber specified.

12

5. ELECTRICAL PARTS LIST• Items marked “*” are not stocked since they

are seldom required for routine service.Some delay should be anticipated when order-ing these items.

The components identified bymark 0 or dotted line with mark0 are critical for safety.Replace only with part numberspecified.

When indicating parts by referencenumber, please include the board.

• AbbreviationCH : Chinese modelHK : Hong Kong modelMY : Malaysia modelSP : Singapore modelTH : Thai model


Ref. No. Part No. Description RemarkRef. No. Part No. Description Remark

30

32

35

36

A-4426-277-A MAIN BOARD, COMPLETE (NX3: MY, SP)

*********************

CN121 1-784-776-11 CONNECTOR, FFC 15P(AEP, UK, MY, SP, JE)

IC501 8-759-597-56 IC M30622MA-A12FP

R582 1-249-407-11 CARBON 150 5% 1/4W(NX3)

R584 1-249-417-11 CARBON 1K 5% 1/4W(MY, SP, JE)

A-4426-281-A PA BOARD, COMPLETE (NX3: E, AUS)*******************

C883 1-127-813-11 ELECT 3300uF 20% 71V(E, AUS, JE)

C884 1-127-813-11 ELECT 3300uF 20% 71V(E, AUS, JE)

A-4426-657-A MAIN BOARD, COMPLETE (MY, SP, HK)A-4428-007-A MAIN BOARD, COMPLETE (CH)A-4428-364-A MAIN BOARD, COMPLETE (TH)

*********************

CN121 1-784-774-11 CONNECTOR, FFC 13P (TH)

CN121 1-784-776-11 CONNECTOR, FFC 15P (MY, SP, HK, CH)

IC501 8-759-656-80 IC M30622MA-A29FP

R582 1-249-415-11 CARBON 680 5% 1/4W

R583 1-249-425-11 CARBON 4.7K 5% 1/4W(TH, CH)

R584 1-249-411-11 CARBON 330 5% 1/4W(TH)

R584 1-249-415-11 CARBON 680 5% 1/4W(CH)

R584 1-249-417-11 CARBON 1K 5% 1/4W(MY, SP, HK)

A-4428-730-A PA BOARD, COMPLETE*******************

C883 1-127-812-11 ELECT 3300uF 20% 63V

C884 1-127-812-11 ELECT 3300uF 20% 63V

13

A-4426-275-A PANEL BOARD, COMPLETE (NX3: E, AUS)**********************

C714 1-162-282-31 CERAMIC 100PF 10% 50V

R707 1-249-433-11 CARBON 22K 5% 1/4W

Page STR-NX1/NX3 STR-NX300Ref. No. Part No. Description RemarkRef. No. Part No. Description Remark

A-4426-655-A PANEL BOARD, COMPLETE**********************

C704 1-162-306-11 CERAMIC 0.01uF 30% 16VC705 1-126-961-11 ELECT 2.2uF 20% 50VC714 1-162-284-31 CERAMIC 150PF 10% 50VC721 1-162-294-31 CERAMIC 0.001uF 10% 50VC722 1-162-305-11 CERAMIC 0.0068uF 30% 16V

C723 1-126-960-11 ELECT 1uF 20% 50VC724 1-136-495-11 MYLAR 0.068uF 5% 50VC725 1-126-959-11 ELECT 0.47uF 20% 50VC726 1-126-959-11 ELECT 0.47uF 20% 50VC727 1-136-167-00 MYLAR 0.15uF 5% 50V

C728 1-162-294-31 CERAMIC 0.001uF 10% 50VC729 1-126-960-11 ELECT 1uF 20% 50VC730 1-161-494-00 CERAMIC 0.022uF 25VC731 1-162-305-11 CERAMIC 0.0068uF 30% 16VC732 1-136-495-11 MYLAR 0.068uF 5% 50V

C733 1-104-664-11 ELECT 47uF 20% 16VC734 1-164-159-11 CERAMIC 0.1uF 50VC735 1-104-664-11 ELECT 47uF 20% 16VC736 1-126-961-11 ELECT 2.2uF 20% 50V

D701 8-719-109-85 DIODE MTZJ-T-72-5.1B

J703 1-785-569-11 JACK (SMALL TYPE) (MIC 2)

IC702 8-759-496-40 IC M65850FP

R701 1-249-429-11 CARBON 10K 5% 1/4WR702 1-249-417-11 CARBON 1K 5% 1/4WR707 1-249-437-11 CARBON 47K 5% 1/4WR711 1-249-433-11 CARBON 22K 5% 1/4WR712 1-249-401-11 CARBON 47 5% 1/4W

R713 1-249-433-11 CARBON 22K 5% 1/4WR714 1-249-433-11 CARBON 22K 5% 1/4WR715 1-249-437-11 CARBON 47K 5% 1/4WR716 1-249-433-11 CARBON 22K 5% 1/4WR717 1-249-433-11 CARBON 22K 5% 1/4W

R718 1-247-881-00 CARBON 120K 5% 1/4WR719 1-249-431-11 CARBON 15K 5% 1/4WR720 1-249-431-11 CARBON 15K 5% 1/4WR721 1-249-433-11 CARBON 22K 5% 1/4W

S618 1-762-875-21 SWITCH, KEYBOARD (KARAOKE PON)

RV702 1-225-739-11 RES, VAR CARBON 50K (ECHO LEVEL)

0F951 1-532-505-31 FUSE T5AL/250V (MY, SP, HK)

0S951 1-771-291-11 SWITCH, POWER (VOLTAGE SELECTOR)(MY, SP, HK)

0T951 1-435-279-11 TRANSSFORMER, POWER

0F951 1-533-949-31 FUSE T8AL/250V (NX3: MY, SP)

0S951 1-771-291-11 SWITCH, POWER (VOLTAGE SELECTOR)(MY, SP, JE)

0T951 1-433-996-11 TRANSSFORMER, POWER (NX3: E AUS)


40

41

39

14


Ref. No. Part No. Description RemarkRef. No. Part No. Description Remark

41

MISCELLANEOUS**************

4 1-751-688-11 WIRE (FLAT TYPE) (13CORE) (TH)4 1-733-011-11 WIRE (FLAT TYPE) (15CORE)

(MY, SP, HK)6 1-233-545-11 TUNER PACK (FM/MW/SW) (TH)6 1-233-546-11 TUNER PACK (FM/MW/SW) (MY, SP, HK)6 1-693-381-11 TUNER PACK (FM/MW/SW) (CH)

67 1-769-885-11 WIRE (FLAT TYPE) (7CORE)0104 1-777-071-51 CORD, POWER (HK, MY, SP)0104 1-783-205-11 CORD, POWER (CH)0104 1-791-901-11 CORD, POWER (TH)0107 1-770-019-11 ADAPTOR, CONVERSION 2P (HK)

0T951 1-435-279-11 TRANSFORMER, POWER

STR-NX300

Sony CorporationHome Audio Division Company

9-929-045-112000A0570082-1

Printed in Singapore C 2000. 1Published by Quality Assurance Dept.

MISCELLANEOUS**************

4 1-733-011-11 WIRE (FLAT TYPE) (15CORE)(AEP, UK, MY, SP, JE)

6 1-233-546-11 TUNER PACK (FM/MW/SW) (MY, SP)

67 1-769-886-11 WIRE (FLAT TYPE) (7CORE)0104 1-575-651-11 CORD, POWER (NX3: MY, SP)

0T951 1-433-996-11 TRANSFORMER, POWER (NX3: E, AUS)


Documents

STR-NX300sportsbil.com/sony/STR/Other/STR-NX300.pdf · 2010-01-26 · STR-NX300 • STR-NX300 is the Tuner and Amplifier section in MHC-NX300AV. • STR-NX300 is almost the same as